CVE Explorer

CVE-2026-42353

i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Prior to version 3.9.3, i18next-http-middleware passes the user-controlled lng and ns values from getResourcesHandler directly into i18next.services.backendConnector.load(languages, namespaces, …) without any sanitization. Depending on which backend is configured, the unvalidated path segments enable either path traversal or SSRF. This issue has been patched in version 3.9.3.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:99411a064d25f7f7b180dab897c696054939a4c7ae33b3fc3a0999cce4ce7002

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"i18next-http-middleware","vendor":"i18next","versions":[{"status":"affected","version":"< 3.9.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/i18next/i18next-http-middleware/security/advisories/GHSA-jfgf-83c5-2c4m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/i18next/i18next-http-middleware/security/advisories/GHSA-jfgf-83c5-2c4m"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9f8a93f92393807996f4ac00a8143aa6d72f8b5b3141286ced96b5230a74d2c0 · sha256:638a1899a5b76ffc… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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